Question: What part of Russia applied to the condition marriageable age as 16?
Paraphrase: Which area of Russia adopted the condition of marriageable age of 16?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q159 p:P3000 ?s . ?s ps:P3000 ?x filter(contains(?x , '16.0')) . ?s pq:P518 ?value}